Factory truck



Sept 17, 1929- J. H. STALEY' 1,728,839'

` FACTORY TRUCK Filed June 6. 1927 Patented Sept. 17, 1929 UNITEDVSTATES JOSEPH H. STALEY, OF COLUMBUS, INDIANA.

FACTORY TRUCK Application filed June c, 192,7. serial No. 196,658.

This invention relates to factory trucks,

and particularly to a truck that may be positioned to remain immovableuntil auxiliary means are employed to permit its being rolled about fromone position to another.

The object and advantages of the invention will readily be apparent bythe following description with reference being made to the accompanyingdrawing, in which,

Fig. 1, is a perspective view of the truck ready for being moved about;

Fig. 2, an enlarged fragmentary detail ele vation of the forward end ofthe truck;

Fig. 3, an enlarged fragmentary detail ele:

vation of the forward end of the truck, similar to Fig. 2, but with thetruck in a lowered position;

Fig. 4, an enlarged front elevation of the truck dolly; and

Fig. 5, a vertical elevation through the dolly on the line 5-5 in Fig.4.

v,Like characters of reference indicate like parts throughout theseveral views of the drawing. v

The truck proper is formed of the frame or base 10, on which may becarried any style of door orbox-bed (not shown) as may be desired tomeet the particular use to which the truck may be put. The frame 10 issupported on a transverse shaft 11 carried by the brackets 12 and 13back of the center of the frame 10, which shaft 11 carries the wheels 14and 15.

The forward end of the truck carries the 5 legs 16 and 17 which normallyrest on the floor and maintain the frame 10 horizontally in cooperationwith the wheels 14 and 15.

Since the legs 16 and 17 bear on the floor,

the truck is held from rolling .or shifting about while being loaded orunloaded.

Secured' to the front cross member 18 of the frame 10 is a casting 19projecting forwardly which has a conical opening therein from its underside. A pilot pin 20, also conical in shape adapted to it Within theopentongue body 25.

The lower ends of the arms 23 and 24 are extended downwardly toreceivetransversely therethrough the axle 26 on the outer ends of whichare carried the wheels 27 and 28. Between the two lower ends of the arms23 and 24 1s a pawl 29 pivotally swung on the axle 26 therebetween. Atongue 30 is secured in the body 25 and by raising and lowering thetongue 30 to rock the body 25 about the axle 26, the arms 23 and 24 arecorrespondingly rocked, which action causes the post 21 to be raised orlowered, as t-he case may be. The major portion of the post 21 isdepended below the supporting shaft 22 so that the post 2 1 .normallytends to remain in a vertical p0- s1t1on as it is raised and lowered.

The lower end of the post 21 has its face 31 upwardly inclined from thatlower edge farthest removed from the axle 26, and the length of the post21 is so made, that, upon lowering the tongue 30 to swing the arms 23and 24 toward the upper vertical position, the axle 26 will approach thelower end of the post 21, as in going from the position in Fig. 3, tothat in Fig. 2, whereupon, the hooked end of the pawl 29 will strike theinclined face 31 of the post 21, slide thereunder, and engage thesharpened edge, as in Fig. 2.

The pawl 29 has an arm 32 projecting therefrom through which is looselypassed a stud 8o 33 having a head on its outer end to limit the Y swingof the arm 32 and hence of the pawl 29, and having its other end securedin the body 25. A spring 34 is carried on the stud 33 to compressivelyengage between the arm 85 32 andthe body 25 whereby the arm 32.isnormally pressed away from the body 25 to throw the pawl 29 to the upperlimit of travel as determined by the head on the stud 33. It is to benoted that the back face of the post 21 is undercut at a (Figs. 2 and 3)just above the sharpened edge of the post to permit positive engagementof the pawl 29 with the post 21 so as to prevent any sudden jar to causethe pawlto be disengaged.

A wire 35 is secured to near the outer end of the pawl arm 32 and passedup through an opening 36 into the tongue 30 which is tubular, and thewire 35 is carried on up through the tongue to a handle 37 extendedoutward- 100 the floor, and it is desired to move the truck,

the tongue 30 audits associated elements comprising what is commonlytermed a dolly is brought up to the front end and the tongue 30 israised with the pawl 29 disengaged from the post 21, and the post 21`ispositioned under 4the casting 19 so that, upon lowering the tongue 30slightly, the pilot pin 2O is entered into the passage or seat in the@casting 19. A collar 39 is formed at the base of the pin 2() on thepost 21 to contact the under side of the lcasting 19 to limit theentrance of the pin 2O therein so that the pin 20 may be free to revolvewithin the seat.

The tongue 30 is then lowered as in Fig. 2, to raise the post 21,fulcruming over the axle 26, to in turn raise the truck frame to carrythe legs 16 andx 17 away from and above the floor. The pawl 29 will thenengage over the end of the post 21 and prevent the tongue 30 fromrising. The truck frame is then entirely supported by the two rearwheels 14 and 15 and the two front wheels'27 and 28, and is easily movedabout by pulling the tongue 30. As the post 21 is pivotally entered bythe pin 20 in the casting 19, the truck may be guided about by turningthe tongue 30 to swing the front wheels 27 and 28 as desired.

I claim:

1. Ina truck having a leg support, a coupling member on the truck, apair of auxiliary wheels, a pair of arms fulcrumed on the axis of thewheels, a post transversely pivoted to and hanging downwardly betweenthe arms, the upper end of said post being formed to engage in saidcoupling member whereby the post is maintained in a vertical position,means for rocking said arms about said axis to cause the axis to traveltoward the post, and means to engage the lower end of the post.

2. In a dolly and truck, a coupling member on the truck, a postdetachably engaging in the coupling member whereby the post is pivotallymaintained in a vertical position, a wheel, an armlfulcrumed 0n the axisof the wheel, said arm being pivoted by its outer end to near the upperend of the post, a tongue adapted to rock the arm about the axis of thewheel to cause the wheel axis to travel toward the post, and `meanscooperating between said tongue and said post to secure the arm in -afixed relation to the post.

3. In a truck having wheels at one end and a leg support at the otherend, a coupling member at the leg end, a pair of auxiliary wheels, anaxle for said wheels, an arm fulcrumed on the axis of the wheels, a postpivotally hanging from the arm, a bearing formed on the upper end of thepost to be pilot pin, of a truck frame, wheels at the rear of the frame,legs 4at the front of the frame and a coupling at the front of the framecomprising a forwardly projecting member having an underside taperingsocket receiving' the tanering pilot pin.

5. The combination with a dolly and a post supported by the dolly on atransverse pivot above its middle, said post having a conical pilot pinand a collar forming an extended base for the pilot pin, of a truckframe, wheels at the rear of the frame, legs at the front of the frameand a coupling at the front of the frame comprising a forwardlyprojecting member having an underside taperin socket receiving thetapering pilot pin and caring upon the collar ofthe pin.

In testimony whereof I aflix my signature.

JOSEPH H. STALEY.

